Electric-bulb protector



W. H. SMITH.

ELECTRIC BULB PROTECTOR.

APPLICATION man Nov. s, 1920.

Patented Jan. MT, T922,

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PA'NT ELECTRIC-BULB PRTECTOR.

incassa.

Specicatien of Letters Patent.

Patented dan. itil, 1922.

Application liled November 3, 1920. Serial No. 421,577.

To all wits/22 t may concern.'

Be it known that l, VVns'roN R. SMITH, a citizen of the United States7 residing at J ackson, in the county of Jackson and State of Michigan, have invented certain new and useful improvements in Electric-Bulb Protectorsu of which the following is a specification.

rlhis invention relates to improvements in guards especially adapted for use in connection with electric light bulbs.

An important object of this invention is to provide a guard of the class described which may be readily and conveniently attached to a lamp socket without the necessity of removing the bulb therefrom or without employing the usual clamping screw or analogous clamping means.

The invention forming the subject-matter of this application aims also to provide a lamp guard having simple means whereby the same is uniformly spaced from the bulb when applied.

A further object of the invention is to provide a lamp guard which is neat in appearance, of highly simplified construction and cheap to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

ln the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of the improved guard applied, the open position of the same being also shown in dotted lines;

Fig. 2 is a horizontal sectional view through the same;

Fig. 3 is a fragmentary perspective of the improved guard, the view illustrating the means for rigidly connecting the sections of the same.

ln the drawing wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 10 designates a socket to which a bulb 12 is connected. 1n the guards now in use it is necessary to detach the bulb in order to secure the guard in position. Further the guard must be secured in position by means of clamping screws and each time it is desired to renew the bulb or clean the same it is necessary to entirely detach the guard. The invention forming the subject-matter of this applicatien eliminates the aheve disadvantages since vadapted to be secured about the socket. A

plurality of spaced apertured ears 20 are secured to or formed integral with each semicircular band 18 and have connection with a plurality of spaced guard wires 22 which in turn have their intermediate portions connected to semi-circular bracing wires 26 by means of wire clips 28.

lVith reference to Figure 3 it will be observed that the guard wires 22 have their forward portions secured as indicated at 3() to a pair of hinge members 31 in the form of semi-circular lengths of wire having their ends provided with interlocking loops 33. The interlocking loops 33 permit the sections to be readily swung outwardly when it is desired to apply the improved guard.

As illustrated in Fig. .2.y the intermediate portions of the guard sections 16 are yieldably connected by means of a pair of spaced parallel contractile coil springs 34 having their ends provided with attaching portions 36 which are engaged with the longitudinal guard wires 22 and the semi-circular bracing wires 26. The contractile coil springs 34 serve as a means for securing the semi-circular bands 18 firmly in contact with the socket- 10 so that the device will be held in position and also contact with the sides of the bulb so that the device will be uniformly spaced from the sides of the bulb. A second set of spaced parallel contractile coil springs 88 secured to the guard sections at right angles to the first-named springsv co-operate with the said springs 34; in uniformly spacing the device from the bulb.

In applying the improved guard, it is merely necessary to swing the semi-circular sections 16 outwardly and then position the sections on opposite sides of the bulb as indicated in dotted lines in Figure 1. The spaced parallel springs 34 will now swing the semi-circular sections inwardly so that the semi-circular bands 18 will be engaged with the opposite sides of the socket. Simultaneously with the en 'agement of the semi-circular bands 18 `vviftlgh the socket the cuil springs' tl and 88 will engage the bulb device as a unit.

and thereby uniformly space the device from the bulb. The coil springs also serve as a means for preventing the device from accidental displacement since they are engaged with the bulb at a point spaced rearwardly ofits widest portion.

o When it vis desired to renew the bulb or clean the same it is merely necessary to swing the sections outwardly as indicated in dotted lines'in Figure l and then remove the In dispensing' with the usual clamping screws for securing the guard in position, the possibility of breaking the bulb when tightening or loosening the screw is eliminated.

Having thusdescribed the invention, what is claimed as new is:

l. guard for electric bulbs comprising a pair of semi-circularsections having semicircular bands adapted for engaging a `bulb socket, coil springs yieldably connecting the sections and adapted for engaging the bulb for uniformly spacing said sections from the forward ends hingedly connected and their opposed edges free throughout their lengths, the rear portions/of said sections being .provided with attaching members, 'a pair of contractile coil springs secured to the intermediate portions of said sections at points spaced from the longitudinal edges of the saine and bridging the same between said` edges, and a Second pair of contractile coil springs each secured to one of the sections at thc inner side thereof and co-operating with the first-named springs in uniformly spacing the sections from the bulb.

ln testimony whereof I aiiizi my signature.

WESTON RQSMITH. [n s] 

